| barley {SMPracticals} | R Documentation |
Spring Barley Data
Description
The spatial layout and plot yield at harvest in a final assessment trial of 75 varietes of spring barley. The varieties are sown in three blocks, each with 75 plots, and each variety is replicated thrice. The yield for variety 27 is missing in block 3.
Usage
data(barley)Format
A data frame with 225 observations on the following 4 variables.
- Block
a factor with three levels
- Location
a numeric vector with 75 values giving the plot
- Variety
a factor with 75 levels giving the variety of barley sown in the plot
- y
yield at harvest, standardised to have unit crude variance
Source
Besag, J. E., Green, P. J., Higdon, D. and Mengersen, K. (1995) Bayesian computation and stochastic systems (with Discussion). Statistical Science, 10, 3–66.
References
Davison, A. C. (2003) Statistical Models. Cambridge University Press. Pages 534–535.
Examples
data(barley)